CAJ | 학술논문

采用乳液聚合方法合成不同粒径SBR粒子,在此基础上制备出折光指数可控的ABS改性剂,研究ABS改性剂中SBR粒子粒径与改性剂壳层单体接枝时引发剂CHP用量对ABS/PVC舍金性能影响,同时对ABS/PVC合金进行透射电镜观察.结果表明:ABS改性剂中SBR粒径为225 nm时,合金达到最大冲击强度,而获得最佳光学性能时SBR粒径为123 nm;同时发现ABS改性剂中壳层单体接枝时CHP用量过少会导致ABS/PVC合金力学性能与光学性能下降,而用量过多时改性剂对PVC的增韧效率降低.
채용유액취합방법합성불동립경SBR입자,재차기출상제비출절광지수가공적ABS개성제,연구ABS개성제중SBR입자립경여개성제각층단체접지시인발제CHP용량대ABS/PVC사금성능영향,동시대ABS/PVC합금진행투사전경관찰.결과표명:ABS개성제중SBR립경위225 nm시,합금체도최대충격강도,이획득최가광학성능시SBR립경위123 nm;동시발현ABS개성제중각층단체접지시CHP용량과소회도치ABS/PVC합금역학성능여광학성능하강,이용량과다시개성제대PVC적증인효솔강저.
The SBR particles of difference diameter were synthesized by emulsion polymerization, and refraction index controlled ABS modifiers were prepared on the basis of the SBR. The influence of SBR diameter and the amount of CHP,which was used to form the shell of ABS modifies, on the properties of ABS/PVC alloys was studied. The results showed that the blends attained maximum impact strength when SBR with diameter of 225 nm was used, meanwhile, the optimum optical properties could be got when diameter of SBR was 123 nm. And it indicated that low level of CHP would deteriorate blends properties and excessive CHP would reduce the toughening efficiency of ABS/PVC blends.